dawson



(No Model.) 3 Sheets-Sheet 1.

J DAWSON FEED REGULATOR.

Patented Man? 5, 1889.

dijornay.

N. PETERS. Phclr/Lilhc nphen wash nmm D. c,

(No Model.) 3 Sheets-Sheet 2.

J. DAWSON.

FEED REGULATOR.

No. 399,187. Patented Mar. 5, 1889.

N. PETERS. Fholn-Luhngriw cr. wmm wn. n. c

(No Model.) 3 Sheets-Sheet 3.

J. DAWSON.

FEED REGULATOR.

No. 399,187. Patented Mar. 5, 1889.

N PETERS, Pixels-Lithographer. Wzshmglun. nv C4 JAMES DAlVSON, OFHARRISBURG, PENNSYLVAXIA, Al

lGNUR ()F ONE-HALF TO JOHN H. DAlVSON, OF SAME PLACE.

FEED-REGU LATOR.

SPECIFICATION forming part of Letters Patent No. 399,187, dated March 5,

Application filed May 9, 1888. fiel'lal No. 273,309. (No model.)

To (4Z1 whont it may concern:

Be it known that l, J AMES DAWSON, a citizen of the United States,residing at Harris burg, in the county of Dauphin and State ofPennsylvania, have invented a new and useful Feed-Regulator, of whichthe follouingis a specification.

My invention is a device for feeding roller gristonills, and it isillustrated in the accompanying drawings, in which- Figure l is a sideelevation of a double feedhopper for a double roller-mill with myinvention mounted therein. view of one of the inclosingcasings; Fig. 3,a top view of the same with braces and other parts broken away; Fig. i,an elevation of the double feed-hopper and of my feed device mountedtherein; Fig. 5, a longitudinal sec tion of the tubular gear-shaft withthe bevelgear thereon for guiding. and rotating the distrihtiter-shaft;Fig. 6, a plan view of the lowerbearing for said bevel-gear shaft; Fig.7,a plan view of the arm for sustaining thereon the distributor-shaft;Fig. 8, a cross-scotion of said tubular shaft with the distributorshaftloosely keyed therein; Fig. 9, a plan view of a double hopper providedwith a single feed device adapted to feed the stock to two pairs ofrolls; Fig. 10, a plan, partly in section,of my invention made by aplane passed through the driver and distributor shafts.

Similar reference-letters refer to similar parts throughout the severalviews.

The l'iopper-casing A is built with offsets in the ends thereof, whereinare located doors A A which are provided with the latches A The doorsare for inspecting various partsthe chutes M M and their delivery to theseveral sets of rolls arranged below the marginal cuts (Z in the lowerpartof the hoppercasin g. On top of said casing is the frame F, securedthereon by supports b, for retaining thereon glass receivers C.Thesereceivers are formed with contracted ends and inserted in seatstherefor at the top and bottom of said frame at openings through it.Vithin these receivers C' conduits O are fitted for introducing the feedor stock. At their bases the receivers 0 rest in the collars C at thehead of the sleeves C which depend from said col- Fig. 2 is a similarbegins.

lars. The said sleeves reach down nearly onto the distributor-disks Hwhen the latter are fully elevated, as shown on the left of Fig. i andin Fig. 9. As the lower ends of said sleeves may not come to a levelwith the dis tribuier-disks, which rotate horizontally, I thereforesupplement the sleeves by the lower sleeves, T, which are supportedadjustably from hangers 1, about three to each lower sleeve. The hangersare screwed into the wood-work above, and have their depending endsscrew-threaded to receive the lugs t on, the lower sleeves, which. areadjusted by the nuts (I. The lower sleeves may thus come almost incontact with the distrilniter-dishs. The distributor-disks H are made torotate uniformly and normally discharge therefrom by centrifugal action,and the shafts l-l thereof reciprocate vertically to regulate thequantity discharged. The chutes M M converge 7o fixedly along a linewhich is parallel withthe opening between the paired rolls and a littledistance above the line where the grinding The fall of the stock fromthe distributor-disk is in a circle; but the said chutes 7 5 aredirected togather the material along the diameter of that circle whichis parallel to said line in equal deposits at all cross-sections of thatline, thus causing an even line of feed along the whole length. of therolls. In Fig. 4 is shown supported the inclosing-casing formed ofsections Q and Q, having the opposite arms D, which are attached bymeans of bolts to the side walls of thehopper-casing, as shown in Fig.10. In a bearing, \W, on the hopper-casing, and in the wall of saidinclosing-casing, is journaled the driver-shaft W, having thereon thepulley CF, and on its inner end, within the inrlosing-casing, thebevel-wheel ll, as shown. Said bevel-wheel o intergears with the similarwheel, g, having the hollow shaft Q? Q", having its upper journal, Qshouldered to bear in and against the top of the inclosing-easing, andhaving its lower journal, Q", supported in and on the bracket g, asshown. The hollow shaft is confined constantly at its bearings by said.bracketg, secured to the wall of said casing inside by the screw g asshown. \Vithin said hollow shaft is vertically supported the shaft H ofthe distribnter-disk, which rests upon the swinging arm fixed to thehorizontal axle K as shown.

Shaft ll. is formed with a longitudinal 5 groove, H therein, in whichslides freely the point of the set-screw g, for imparting to said shaftthe rotary movement of the wheel 9, "while it allows said. shaft H to beadjusted vertically for raising and lowering the dis- IO tributer-diskH, which it rotates, it being secured rigidly thereon by screw 7r. Oneend of the axle 1' is journaled in the abutment E on theinclosing-casing, and the other end is extended parallel but opposite toshaft \V I5 and journaled in plate S" on the exterior of thehopper-wall, as shown in Figs. 1 and 10.

On the outer end of the axle K is rigidly secured the arm K, which isarranged to swing or play between the projections S and S, formed on theplate The projection S is provided with the transversely arrangedthumb-screw X, whereby the arm K may be adjusted and the distance of thedisk H from sleeve T varied.

Suitable weights, \V, are suspended on said rods, as on scale-beams, andmay be adjusted to cause the arms K to be at rest when the feed iscoming through the conduit regularly or normally, but to swing and standin reversed position against the projection S when the feed comingthrough onto the distributer-disk too fast for perfect distribution. henthe quantity of feed is coming onto the same normally, the said arms arein position 3 5 as shown in Fig. 1 at the left side of the view, the armK then resting against the end of the screw X, which is adj ustablyinserted in the proj ection S, and when the quantity of the feed isabnormal or above the right quantity said 40 arm will be swung to standas shown on the right side of said view.

At the left of Fig. l the swinging arm K rests against the point of thescrew X. On the right of the same view said arm has swung to theopposite side. Accordingly as said arm moves the shaft K is raised orlowered, therefore also the arm attached to said shaft, and as said armrises or falls the distributor-disk is adj ust-ed to shut off or toincrease the feed. The feed device is therefore automatic, forif thefeed is coming by way of the sleeve C in ordinary quantity the arm Kwill swing to the position shown on the right of. Fig. l; but if by someirregularity an ex- 5 5 traordinary weight or quantity of feed comesuddenly down said sleeve the dist-ributer disk ll will be pressed lowerand the opening above it will be enlarged to quickly let more stock passto relieve the emergency, and this change of feed will be indicated bothby the position of the arm K, standing as on the right of Fig. l, andalso by the visible filling up of the transparent receiver C on the sameside. Thus the miller is at once apprised of the matter that needs hisattention. The automatic action is therefore for protection against thechoking or filling up the conduits and other machinery. This arrangementis therefore a safety device to further good milling. The hard dry graincauses less difficulty than soft grain or middlings or stock that runsin bulky masses. My device remedies such difficulty by promptlyapportioning to each portion of the rolls equal parts of the work, thuslessening the task for each part.

In Figs. 1 and 4c the feed-hopper is shown and indicated verticallydivided by the partition M, and my feed device is duplicated, so thatone device is in each division for grinding different kinds or grades ofstock in the two mills arranged in one frame.

In Fig. 9 the double hopper has the partition removed and only one feeddevice is used, located in the place of the partition or vertically atthe head of the chutes M. This arrangement is for a double mill,-inwhich the same kind of stock is fed to two pairs of rolls by one of mydevices. The distribution here is also approximately equal and completethroughout the whole length of both sets of rolls.

The inclosing-casing Q Q is made of a larger section, Q, in which therotary parts are located and journaled, and of a smaller section, Q,which is secured to said other sec-. tion by bolts D through lugs on thesections, and said section Q may be removed for inspection of the workswithout disturbing them. The works may all be lubricated exteriorly orwithout opening said lid by oiling the journal Q and the shaft Hjournaled in the shaft Q The weights \V on the rods N are of proper sizewhen adjusted midway on the rods to rest unmoved till the receivers Care'about half-filled, as will occur in feeding normally of a given kindof stock. hen heavier or lighter stocks are fed, the weights areadjusted to carry said receivers normally about halffilled. The instant,then, a greater run of feed occurs the receivers fill up higher, andsaid weights are overbalanced and the distributer-disks H areautomatically lowered and opened to let .more stock come onto the rolls.XV hen the normal travel or run of the feed again' is attained, thestatus of the weights and of the receivers is again resumed. The millermay, therefore, at any time tell by a glance by inspecting the receiverswhether the feed is normal. The distributer-disks need have noperipheral curb, as they are saucer form on top, as shown, and freelyspray the stuff in circles, and the fixed chute-boards ll M gather thedeposit evenly on a line of feed in which the amount of deposit is thesame at all cross-sections.

I claim- 1. In a feed regulator for roller-mills, the combination offeed-hopper having sides inclined equally to the line of deposit of thefeed parallel to and along the whole length of the rolls, the mainsleeve 0 added sleeve T, attached adjustably by hangers exterior to saidsleeve and both depending from the hop- IIO per-top, and the rotatingdisk ll directly under said sleeves, an axle journaled in the easing andprovided with a swinging arm supporting said disk, and means foryieldingly securing said axle, rendering the disk vertieally'self-adjlisting, substantially as set forth.

2. In combination with the inclosing-easing; Q Q, provided with the armsD and secured equidistantly. to the hopper-walls, the intergearingbevel-wheels g and R, journaled in said casing, the tubular shaft Q Q",secured to said wheel g, the driver-shaft W, which is extended throughthe hopper-wall, having the bearing thereon and carrying the wheel R,the Yertically-sustained shaft 1P, keyed loosely in the tubular shaft ofwheel g, with the disk ll, secured rig-idly on the shaft, substantiallyas and for the pu rposes set forth.

ii. In combination with the inclosing-easing Q Q, the int-ergea-redwheels g R, the vertishaft thereon, said wheels and arm being inclosedin the casing, in whose walls theyha-ve their bearings, substantially asand for the purposes set forth.

4:. In combination, the casing Q Q, provided with the arms I), forattaching it in mid-hopper, the bracket 51, secured in said casing, thehollow gear g, journaled' in the casing; and in said bracket g, thedistributerdisk ll on the shaft H one end of which is guided in saidhollow gear, and having an internal grooved connection to permitvertical adjustment therein, the (hiring-shaft W, with its bevel-wheelR, intergeared with said hollow gear, the arm F, on which the shaft IIrests, and the rock-shaft K oppositely l poised, with the weight \V hungthereon and limited in its throw, substantially as and for rally-guidedrotary shaft 11*, the distributer H on said shaft, and the shaft Kprovided with the arm g and means for sustaining said the purposes shownand described.

7 JAMES DANSON. \Vitnesses:

D. C. MAUI-tee, THEOPHILUS WEAVER.

